Abstract: A heat sink assembly for a printed circuit board including at least one electronic component. The first heat sink coupled to a first side of the printed circuit board. The first heat sink includes an exterior surface, an interior surface, at least one electronic component stand-off, and at least one fastener stand-off. The exterior surface defines a plurality of first heat sink fins. The interior surface defines an interior volume to receive the printed circuit board. The at least one electronic component stand-off extends from the interior surface aligned with the at least one electronic component to transmit heat from the at least one electronic component to the plurality of first heat sink fins along a first conduction path. The at least one fastener stand-off extends from the interior surface and is spaced from the at least one electronic component stand-off.

Abstract: A rotary hammer operable in a plurality of modes in which reciprocating of a tool bit along a drive axis and/or rotation of the tool bit about the drive axis occurs. The rotary hammer includes a trigger, a mode switch, a motor direction switch, and a control unit. The trigger is movable between off and on positions. The mode switch selects a mode of operation between first and second operating modes. The motor direction switch is configured to select a direction of operation of a motor between first and second rotational directions. A control unit is configured to override an output of the motor direction switch by determining that the mode switch corresponds with the second operating mode, determining that the motor direction switch corresponds with the first rotational direction, and by driving the motor in the second rotational direction upon actuation of the trigger.

Abstract: A printed circuit board assembly for use in a power tool includes a potting boat, a printed circuit board, a thermally conductive gap pad, potting material, and a secondary heat sink. The potting boat includes primary heat sink fins. The electronic components are mounted on a first surface of the printed circuit board. The gap pad contacts the electronic component and the stand-off. The potting material at least partially encapsulates the printed circuit board within the potting boat. The secondary heat sink contacts a second surface of the printed circuit board opposite the first surface. The secondary heat sink includes secondary heat sink fins. Heat generated by the electronic components is transferred via conduction to both the primary heat sink fins and the secondary heat sink fins. The heat is dissipated to the surroundings of the printed circuit board assembly.

Abstract: A percussion tool including a parking assembly movable relative to a spindle. The parking assembly includes a seat coupled to the spindle, a first shuttle portion movable relative to an outer surface of the spindle, a biasing member positioned between the seat and the first shuttle portion, a second shuttle portion movable relative to the outer surface of the spindle, a bushing positioned within the spindle and configured to receive a portion of an anvil, and a fastener that couples the second shuttle portion to the bushing. The first shuttle portion and the second shuttle portion are movable together between a working position, in which a plurality of radial air vents in the spindle is closed, and an idle position, in which the plurality of radial air vents is open. The biasing member is configured to bias the first shuttle portion and the second shuttle portion into the idle position.

Abstract: A percussion tool including a parking assembly movable relative to a spindle. The parking assembly includes a seat coupled to the spindle, a first shuttle portion movable relative to an outer surface of the spindle, a biasing member positioned between the seat and the first shuttle portion, a second shuttle portion movable relative to the outer surface of the spindle, a bushing positioned within the spindle and configured to receive a portion of an anvil, and a fastener that couples the second shuttle portion to the bushing. The first shuttle portion and the second shuttle portion are movable together between a working position, in which a plurality of radial air vents in the spindle is closed, and an idle position, in which the plurality of radial air vents is open. The biasing member is configured to bias the first shuttle portion and the second shuttle portion into the idle position.